The integration lets you connect Line Business Channels.
Direct link to LINE Business ID: https://account.line.biz/login
You're prompted to choose from 2 authorization methods ("Log in with Line Account" selected)
Credentials of LINE Business ID - login (e-mail) and password, which have been used during account registration in the mobile application.
To do that you need to click on "Edit" and paste Webhook URL. After than you should confirm the address by clicking "Verify"